Using the data below, what is the opportunity cost associated with choosing to produce 3 capital goods instead of 2 capital goods? This reflects moving from Point C to Point D. A B C D E Capital goods 0 1 2 3 4 Consumer goods 25 23 19 13 0 a 2 consumer goods b 6 consumer goods c 4 consumer goods d 0 capital goods e 4 capital goods